Q: My car shakes when I decelerate on the highway.

asked by on

I had to have my differential repaired around a year ago and since then when I start decelerating on the highway approx 45 to 55 mph it's shake violently. Is this a issue with the differential or something else.

My car has 157000 miles.

Hey there.

Thanks for writing in today in regards to your 2004 Jeep Grand Cherokee. I think the issue you’re describing is not related to the differential. Most of the time, a vehicle shakes because of three specific items; problems with the tires or wheels, loose or broken suspension components, wheel bearings that are worn out. With a four wheel drive Jeep Grand Cherokee, the first thing I’d dive into would be CV joints being extremely worn out, or the tie rod end joints.

When you decelerate, weight is transferred to the front end of your Jeep quickly; even without pressing the brakes. That causes more load to those suspension components and can cause the shaking you’re describing at the speeds you’re indicating. The best bet here is to contact a local ASE certified mechanic, such as one from YourMechanic, and allow them to road test your Jeep Grand Cherokee. The road test is often the best starting point to accurately diagnose the shaking you’re experiencing.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. My car shakes when I decelerate on the highway.

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Check Engine Light on Dodge Ram 1500 with code P0073

Check the condition of the harness that plugs into the sensor to ensure that the sensor is staying plugged in. If you are saying that the sensor is functioning and the voltage does change, then it is possible that your...

Q: Q: Engine turns over but won't start

An engine needs three things to run: compression, fuel and ignition. If one of these are missing, your engine will not start. A test for spark and fuel should reveal the most likely culprit (e.g., fuel pump, crankshaft/camshaft sensors or...

Q: The front end and steering wheel shakes when I accelerate.

You may have a traction control system that is activating when you are accelerating. This can be due to one of two things: the speed sensors in the front detect that a wheel is going faster than it...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.